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run code in 300+ PHP versions simultaneously
<?php $size = 100; $b = array(); for ($i = 0; $i < $size; $i++) { $b[] = chr(rand(64,128)); } $a = array(0,3,4,2,6); for ($i = 0; $i < 1000; $i++) { $c = array_intersect_key($b, array_flip($a)); }
Output for 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.7
Output for 5.0.0 - 5.0.5
Fatal error: Call to undefined function array_intersect_key() in /in/FNb2v on line 13
Process exited with code 255.
Output for 4.4.5 - 4.4.9
Fatal error: Call to undefined function: array_intersect_key() in /in/FNb2v on line 13
Process exited with code 255.
Output for 4.3.2 - 4.3.11, 4.4.0 - 4.4.4
Fatal error: Call to undefined function: array_intersect_key() in /in/FNb2v on line 13
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Call to undefined function: array_intersect_key() in /in/FNb2v on line 13

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